ci: add GitHub Action

.github/workflows/vader-vim.yaml

@@ -0,0 +1,65 @@
+---
+name: Vader Integration Tests
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Install Vim
+        run: sudo apt-get install vim neovim
+
+      - name: Download Dependencies
+        run: |
+          git clone https://github.com/junegunn/vader.vim.git
+          wget https://github.com/rgoulter/c-worksheet-instrumentor/releases/download/v0.2.6/c-worksheet-instrumentor-0.2.6.tar
+          tar -xf c-worksheet-instrumentor-0.2.6.tar
+
+      - name: Demonstrate C Worksheet
+        run: |
+          # Uploaded release compiled with recent Java.
+          export JAVA_HOME=$JAVA_HOME_21_X64
+          c-worksheet-instrumentor-0.2.6/bin/c-worksheet-instrumentor <(cat << EOF
+          #include <stdio.h>
+
+          int main(int argc, char **argv) {
+            printf("Hello World\n");
+          }
+          EOF
+          )
+
+      - name: Test Vim
+        run: |
+          # Uploaded release compiled with recent Java.
+          export JAVA_HOME=$JAVA_HOME_21_X64
+          export PATH=c-worksheet-instrumentor-0.2.6/bin:$PATH
+          vim -Es -Nu <(cat << VIMRC
+          set rtp+=vader.vim
+          set rtp+=.
+          filetype plugin indent on
+          VIMRC
+          ) -c 'silent Vader! test/*'
+        timeout-minutes: 2
+
+      - name: Test NeoVim
+        run: |
+          # Uploaded release compiled with recent Java.
+          export JAVA_HOME=$JAVA_HOME_21_X64
+          export PATH=c-worksheet-instrumentor-0.2.6/bin:$PATH
+          nvim -Es -u <(cat << VIMRC
+          set rtp+=vader.vim
+          set rtp+=.
+          filetype plugin indent on
+          VIMRC
+          ) -c 'silent Vader! test/*'
+        timeout-minutes: 2